public async Task <ProjectPromoter> CreateProjectPromoter(ProjectPromoter promoter)
        {
            var newPromoter = await _context.ProjectPromoter.AddAsync(promoter);

            await _context.SaveChangesAsync();

            return(newPromoter.Entity);
        }
        public async Task <ProjectPromoter> InsertProjectPromoter(Invitation invitation)
        {
            var newProjectPromoter = new ProjectPromoter
            {
                Project = invitation.Project,
                User    = invitation.For_Who
            };
            var insertedPromoter = await _projectPromotersRepository.CreateProjectPromoter(newProjectPromoter);

            return(insertedPromoter);
        }